}

    @Test
    public void test_getStatus_returnsCorrectValue() {
        // Since we cannot easily create a real ClusterHealthResponse without a running cluster,
        // we'll test the class behavior through unit tests that verify the logic
        // The actual integration with ClusterHealthResponse is tested in integration tests

        // Test that the constructor and getters work with proper setup

        final AdminClient mockAdminClient = mock(AdminClient.class);
        final ClusterAdminClient mockClusterAdminClient = mock(ClusterAdminClient.class);
        final ClusterHealthResponse mockHealthResponse = mock(ClusterHealthResponse.class);
        final ActionFuture<ClusterHealthResponse> mockFuture = mock(ActionFuture.class);

        fesenClient.targetIndices = null;

        when(mockClient.admin()).thenReturn(mockAdminClient);

            assertTrue(e.getMessage().contains("Connection failed"));
        }
    }

    // Helper method to create mock ClusterHealthResponse
    private ClusterHealthResponse createMockHealthResponse(String clusterName, ClusterHealthStatus status) {
        return new ClusterHealthResponse() {
            @Override
            public String getClusterName() {
                return clusterName;
            }

import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.SearchEngineUtil;
import org.lastaflute.di.exception.IORuntimeException;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.cluster.health.ClusterHealthStatus;
import org.opensearch.common.xcontent.XContentType;

/**
 * Response entity for ping operations.
 */
public class PingResponse {

import org.opensearch.OpenSearchException;
import org.opensearch.action.ActionRequest;
import org.opensearch.action.ActionType;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.action.admin.indices.segments.IndicesSegmentResponse;
import org.opensearch.action.admin.indices.segments.PitSegmentsRequest;
import org.opensearch.action.bulk.BulkRequest;

import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.monitor.jvm.JvmStats;
import org.opensearch.monitor.jvm.JvmStats.BufferPool;
import org.opensearch.monitor.jvm.JvmStats.Classes;
import org.opensearch.monitor.jvm.JvmStats.GarbageCollectors;

import org.opensearch.action.ActionType;
import org.opensearch.action.DocWriteRequest.OpType;
import org.opensearch.action.DocWriteResponse.Result;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.action.admin.indices.alias.IndicesAliasesRequestBuilder;
import org.opensearch.action.admin.indices.create.CreateIndexResponse;